The study here presents laboratory testing results of Class F fly ash geopolymer for oil well cementing applications. The challenge reported in literature for the short thickening time of geopolymer ash has been overcome in this study, where more than 5 h of the thickening time is achievable. API Class H Portland cement used a controller on all the tests conducted in this work. Tests conducted in this research include unconfined compressive strength (UCS), shear bond strength, thickening time, shrinkage, free water, and cyclic and durability tests. Results indicate temperature as a crucial factor affecting the thickening time of geopolymer mix slurry. UCS testing indicates considerably higher compressive strength after one and fourteen days of curing for geopolymer mixtures. This indicates gaining strength with time for geopolymer mixture, where time retrogression effects are observed for Portland cements. Results also indicate higher shear bond strength for geopolymer mix that can better tolerate debonding issues. Additionally, more ductile material behavior and higher fracture toughness were observed for optimum geopolymer mixes. Tests also show applicability of these materials for deviated wells as a zero free water test was observed.
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January 2018
Research-Article
Study and Use of Geopolymer Mixtures for Oil and Gas Well Cementing Applications
Saeed Salehi,
Saeed Salehi
Mewbourne School of Petroleum
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
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Mohammad Jamal Khattak,
Mohammad Jamal Khattak
Civil Engineering Department,
University of Louisiana,
Lafayette, LA 70504
University of Louisiana,
Lafayette, LA 70504
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Nasir Ali,
Nasir Ali
Petroleum Engineering Department,
University of Louisiana,
Lafayette, LA 70504
University of Louisiana,
Lafayette, LA 70504
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C. Ezeakacha,
C. Ezeakacha
Mewbourne School of Petroleum
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
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Fatemeh K. Saleh
Fatemeh K. Saleh
Mewbourne School of Petroleum
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
Search for other works by this author on:
Saeed Salehi
Mewbourne School of Petroleum
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
Mohammad Jamal Khattak
Civil Engineering Department,
University of Louisiana,
Lafayette, LA 70504
University of Louisiana,
Lafayette, LA 70504
Nasir Ali
Petroleum Engineering Department,
University of Louisiana,
Lafayette, LA 70504
University of Louisiana,
Lafayette, LA 70504
C. Ezeakacha
Mewbourne School of Petroleum
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
Fatemeh K. Saleh
Mewbourne School of Petroleum
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
and Geological Engineering,
University of Oklahoma,
Norman, OK 73069
Contributed by the Petroleum Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received June 16, 2017; final manuscript received July 24, 2017; published online September 12, 2017. Editor: Hameed Metghalchi.
J. Energy Resour. Technol. Jan 2018, 140(1): 012908 (12 pages)
Published Online: September 12, 2017
Article history
Received:
June 16, 2017
Revised:
July 24, 2017
Citation
Salehi, S., Khattak, M. J., Ali, N., Ezeakacha, C., and Saleh, F. K. (September 12, 2017). "Study and Use of Geopolymer Mixtures for Oil and Gas Well Cementing Applications." ASME. J. Energy Resour. Technol. January 2018; 140(1): 012908. https://doi.org/10.1115/1.4037713
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